Wired.com have managed to get their hands on some KIN One and KIN Two Usability Study videos, and it shows how Microsoftâ€™s aborted feature phones/ smartphones disappointed reviewed with slow and laggy touch performance.

Windows Phone 7 was of course released a bare 5 months later, and was exactly the opposite of laggy, earning a reputation of a fast and smooth operating system, not by co-incidence, but because it was an obsession of the development team.